BIDS 2008: Filtering based on the value of a parameter

Question

I'm trying to filter a table based on the value of Parameter and the values for a field.

I'm using FailedFlag which is a field which contains only Yes and No values.

And i'm using a parameter called Filter with Failed Only and All .

Currently i'm using this expression in the tables filter value expression,

=IIF(Parameters!Filter.Value = "Failed Only","Yes", "Yes" OR "No")

The first bit works, when filter is set to Failed Only the table only shows rows where the FailedFlag is Yes however the second part of the expression where the Filter parameter is NOT Failed Only doesn't return any rows.

Thanks

Answer 1

I think your syntax is wrong. IIF has the form

IIF(<expression_to_evaluate>,<value_if_true>,<value_if_false>)

When I try to evaluate "Yes" OR "No" , I get an error. I don't think you can do a logical Or on strings. In the false case, it probably ignores the error expression so it doesn't have a value to use for filtering.

In your table Filters, set this as the expression

=IIF(Parameters!Filter.Value "Failed Only", "Yes", "No")

Set the operator dropdown box to = , and in the value box put =Fields!FailedFlag.Value

Hopefully this screenshot clarifies.